Which adaptation is used by polar bears to maintain internal homeostasis in cold temperatures?

The adjustment utilized by polar bears to keep up inward homeostasis in cool temperatures is the fat. This is a thick layer of fat under the skin of creatures.  

Explanation:

The meaning of homeostasis is the capacity or propensity to keep up inner steadiness in a life form to adjust for natural changes. A case of homeostasis is the human body keeping a normal temperature of 98.6 degrees.Homeostasis is the condition of unfaltering inner conditions kept up by living things. This dynamic condition of harmony is the state of ideal working for the living being and incorporates numerous factors, for example, body temperature and liquid parity, being kept inside certain pre-set cutoff points

Blubber

Explanation: